Baffle-plate for boilers



(No Model.)

F. P. LANDIS. BAFPLB PLATE PoR BOILERS. No. 464,305. `Patented Dec. 1,'1891.

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A'UNITED STATES PATENT OFFICE.

FRANK E. LANDIs, oE wAYNEsBoEoUGH, PENNSYLVANIA.

BAFF-LEPLATE FOR BOILERS.

SPECIFICATION forming part of Letters Patent No. 464,305, dated December1, 1891.

Application tiled March 16, 1891. -Serial No. 385,157. (No model.) v lTo all whom it may concern.-

Be it known that I, FRANK F. LANDIs, a citizen of the United States,residing at Waynesborough, in the county of Franklin and State ofPennsylvania, have invented certain new and useful Improvements inBaffie-Plates for Boilers; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the artV to which it appertainsA to make and use thesame.

This invention relates to baffle-plates for boiler-furnaces; and itconsists in the novel construction and combination of the parts,hereinafter fully described and claimed.

In the drawings, Figure l is a longitudinal section through aboiler-furnace provided with abaftle-plate according to this invention,and Fig. 2 is a cross-section through the same. Fig. 3 is a plan view ofthe baffle-plate, and Fig. 4 is an end view of the same. I

A is the furnace of the boiler, which may be of any approvedconstruction-such as, for instance, the boiler of a portable engine. Acharging-opening a, for coal or other hard fuel is provided, and a is asecond charging-opening for light fuel, such as straw, the boiler beingadapted to be iired with coal or straw, as found convenient.

A is the end plate of the furnace opposite the charging-openings, whichis also the tubeplate.

B is a sleeve for supporting the front end of the baftleplate. Thissleeve B is loosely journaled on a pipe C, which passes clear throughthe shell of the boiler and through the fire-box.

C are thimbles between the shell and the fire-box on each side of theboiler for the pipe C to pass through. One end of the pipe C isconnected to the water-space of the boiler by the pipe c, and the otherend of the pipe C is connected to the water-space of the boiler by thepipe c at alevel above the said pipe c. The thimbles afford asteam-tight and watertight passage for the pipe C through the boiler andpermit the said pipe and the boiler to expand and contract irrespectiveof each otherv and without becoming leaky, as would be the case if theends of the pipe C were connected direct to the water-spaces on eachside of the fire-box without. passing through `the shell of the boiler.

The baffle-plate is formed of two similar reversible and interchangeableparts D D, each of which is provided with a backpivot d and a frontpivot d. The pivots are arranged in line with each other and a little toone side of the centers of gravity of the parts D D. The sleeve `B isprovided with pockets l), in which the pivots d are supported, and b arelugs projecting from the ends of the sleeve.

F are stops projecting from the sides of the fire-box for thelugs b tobear against, so that the sleeve will not turn upon the pipe under theweight of the baffle-plate.

E are pockets secured to the tube-plate for carrying the back pivots dof the parts D D of the baffle-plate. Brackets e are secured to thesides of the lire-box for the outer edges of the parts D to bearagainst, so that the two parts will be held in position by gravity, asshown in the drawings. The baffle-plate is arranged with the usualinclination, and the iiame passes around it and out through the tubes inthe ordinary manner. p

Vhen ashes, tc., accumulate on top of the baffle-plate, a bar of iron isinserted through the charging-opening, and the parts D D are turned ontheir pivots so as to discharge all the ashes into the lower part of thefire-box at each side.

When the parts D D become warped by the heat beneath them, they can betaken out, turned over, and interchanged one for the other, so that theymay become straight again.

A constant circulation of water is set up through the pipe C and thesleeve B is kept IOO parts provided with pivots at each end forsupport-ing them in the furnace and adapted to be reversed andinterchanged one for the other when they become warped;

2. The combination, with a boiler-furnace, of a baffle-plate formed oftwo parts provided )vith pivots at each end for supporting them 1n thefurnace, the said pivots being placed to one side of the centers ofgravity of the said parts, and brackets secured to the furnace sides forholding the parts of the baffle-plates in the same plane.

3. The combination, with a boiler-furnace, of a Water-pipe passingcrosswise through the furnace, a sleeve completely inclosing the saidwater-pipe, and a baffle-plate supported in the said furnace and havingits front end carried by pockets on the said sleeve, substantlally asand for the purpose set forth.

.4. The combination, With a boiler provided fvlth an internal furnace,of aWater-pipe passing clear through the boiler and its furnace, theends of the said pipe being connected to the Water-space of the boilerat different levels, a sleeve completely inclosing the saidv Water-pipe,and a baiiie-plate supported in the furnace and having its front endcarried by pockets on the said sleeve, substantially as and for thepurpose set forth.

5. The combination, with a boiler-furnace, of a water-pipe passingcrosswise through the furnace, a sleeve inclosing the said Water-pipe,and a baffle-plate formed of tWo longitudinal parts, each pivoted to thefurnace end plate and to the said sleeve, substantially as and for thepurpose set forth.

6. The combination, with a boiler-furnace, of a water-pipe passingcrosswise through the furnace, a sleeve inclosing the said pipe andhaving projecting lugs at its ends, stops on the furnace sides forpreventing the rotation of the sleeve on the said pipe by bearingagainst the said lugs, and a baiiie-plate formed of two longitudinalparts, each pivoted to the furnace end plate and to the said sleeve,substantially as and for the purpose set forth.

In testimony whereof Iaffix my signature in presence of two Witnesses.FRANK F. LANDIS. Witnesses ALF. N. RUSSELL, D. B. RUSSELL.

